Temperature
Cold by day, freezing at night.
30°Ftypical December high
Typical range
December climate
December in Ottawa
Canada · North America
Not the best time: Cold weather and some snow or mixed precipitation are the main limitations.
Not an ideal month
Daytime high
30°F
Lows around 18°F
Precipitation
12 days/mo
Sun
4.5 h/day
Air feel
Very dry
When to visit
Month-by-month fit
Best
Precipitation
Some snow or mixed precipitation is possible this month.
39%wet-day frequency
Precip amountWet-day chanceSnowfall
Sunshine
Wintry precipitation and cloud limit sunshine.
4.4 hDecember sunshine
Heat & humidity by month
Humidity is rarely noticeable in the cool air.
Very dryDecember Heat feel
Easy airWarm airHot airHumid airVery humid air
Hourly temperature pattern
In December, afternoons feel about 18° and nights feel near 13°.
FrigidFreezingVery coldColdCoolComfortableWarmNight hours
Clear sky
Overcast skies this month.
20%December Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in December.
7 mphDecember Light breeze
More detailIncludes daypart comfort
Typical December day
December late afternoons are around 26°F, and early evening stays near 25°F.
Avg temp Typical range
Morning23°F
Rain22%
Cloud84%
Humid airLow
Sun intensityMinimal
Midday27°F
Rain21%
Cloud83%
Humid airLow
Sun intensityLow
Late afternoon26°F
Rain21%
Cloud79%
Humid airLow
Sun intensityMinimal
Best windowEarly evening24°F
Rain20%
Cloud75%
Humid airLow
Sun intensityMinimal
Data tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 24 | 8 | 2.8 | 11 | 5.3 | 77 |
| Feb | 28 | 10 | 2.4 | 10 | 6.7 | 73 |
| Mar | 38 | 21 | 2.9 | 10 | 8.0 | 68 |
| Apr | 54 | 35 | 3.7 | 11 | 8.8 | 63 |
| May | 68 | 47 | 3.6 | 12 | 10.2 | 65 |
| Jun | 76 | 56 | 4.1 | 12 | 11.3 | 71 |
| Jul | 80 | 61 | 3.9 | 12 | 12.1 | 74 |
| Aug | 78 | 59 | 3.7 | 11 | 11.0 | 77 |
| Sep | 71 | 52 | 3.5 | 10 | 8.9 | 79 |
| Oct | 56 | 41 | 3.8 | 12 | 6.5 | 78 |
| Nov | 42 | 30 | 3.1 | 11 | 4.9 | 79 |
| Dec | 30 | 18 | 3.4 | 12 | 4.4 | 81 |
Similar climates
Similar
Similar travel styleChicagoUnited StatesSimilar travel styleNew York CityUnited StatesSimilar travel styleTorontoCanadaSimilar travel styleHalifaxCanada
Want a side-by-side climate view? Compare Ottawa with Chicago.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology